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Stock-based Employee Compensation, Stock Option Plans, and Deferred Compensation Plan for Directors - Stock Options Issued (Details) | 9 Months Ended
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Sep. 30, 2023 $ / shares
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] |
Exercise price (in usd per share) | $ 0
Directors | May 12, 2023 |
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] |
Exercise price (in usd per share) | 33.79
Fair value (in usd per share) | $ 6.53
Volatility | 31.90%
Expected life (years) | 5 years
Assumed yield | 4.94%
Risk-free rate | 3.45%
Directors | May 13, 2022 |
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] |
Exercise price (in usd per share) | $ 47.90
Fair value (in usd per share) | $ 8.34
Volatility | 30.00%
Expected life (years) | 5 years
Assumed yield | 4.90%
Risk-free rate | 2.89%
Officers | May 12, 2023 |
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] |
Exercise price (in usd per share) | $ 33.79
Fair value (in usd per share) | $ 6.06
Volatility | 28.80%
Expected life (years) | 7 years
Assumed yield | 4.96%
Risk-free rate | 3.45%
Officers | May 13, 2022 |
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] |
Exercise price (in usd per share) | $ 47.90
Fair value (in usd per share) | $ 7.66
Volatility | 27.10%
Expected life (years) | 7 years
Assumed yield | 4.93%
Risk-free rate | 2.95%

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- Definition Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items] + References No definition available. + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(02) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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